What is the best and freest Minecraft shader?
Sildurs Vibrant is very good.
I highly recommend Continuum
So I use sildurs vibrant shaders.
Najja unfortunately not quite, because the lighting is a bit too yellow and it often looks like a permanent sunset. That's why I find SEUS most realistic. That is where the lighting is the most pristine when it comes to color.
https://www.gamez.de/guides/minecraft-shader-packs/